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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Accountant	Georg Pipps	USA	1 2 3 4 5
2	Sales Associate	Hanna Moos	France	1 2 3 4 5
3	Sales Associate	Jaime Yorres	Italy	1 2 3 4 5
4	Sales Agent	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
5	Sales Agent	Pascale Cartrain	Spain	1 2 3 4 5
6	Sales Associate	Elizabeth Lincoln	Austria	1 2 3 4 5
7	Marketing Assistant	Antonio Moreno	Austria	1 2 3 4 5
8	Sales Associate	Howard Snyder	USA	1 2 3 4 5
9	Sales Agent	Georg Pipps	Spain	1 2 3 4 5
10	Marketing Assistant	Paul Henriot	USA	1 2 3 4 5
11	Marketing Assistant	Howard Snyder	Bulgaria	1 2 3 4 5
12	Sales Consultant	Paul Henriot	Brazil	1 2 3 4 5
13	Sales Agent	Paul Henriot	France	1 2 3 4 5
14	Sales Manager	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
15	Sales Associate	Georg Pipps	France	1 2 3 4 5
16	Marketing Manager	Hanna Moos	Argentina	1 2 3 4 5
17	Accounting Manager	Howard Snyder	Spain	1 2 3 4 5
18	Sales Agent	Patricio Simpson	Italy	1 2 3 4 5
19	Marketing Manager	Paul Henriot	Spain	1 2 3 4 5
20	Owner	Georg Pipps	USA	1 2 3 4 5
21	Sales Manager	Howard Snyder	Brazil	1 2 3 4 5
22	Sales Consultant	Antonio Moreno	Bulgaria	1 2 3 4 5
23	Sales Associate	Jaime Yorres	USA	1 2 3 4 5
24	Sales Agent	Elizabeth Lincoln	Germany	1 2 3 4 5
25	Sales Consultant	Howard Snyder	Bulgaria	1 2 3 4 5
26	Accountant	Georg Pipps	Italy	1 2 3 4 5
27	Owner	Antonio Moreno	USA	1 2 3 4 5
28	Sales Manager	Antonio Moreno	USA	1 2 3 4 5
29	Sales Associate	Matti Karttunen	Bulgaria	1 2 3 4 5
30	Sales Consultant	Hanna Moos	Brazil	1 2 3 4 5
31	Sales Consultant	Paul Henriot	Germany	1 2 3 4 5
32	Sales Manager	Paul Henriot	England	1 2 3 4 5
33	Sales Agent	Antonio Moreno	Argentina	1 2 3 4 5
34	Sales Associate	Elizabeth Lincoln	Germany	1 2 3 4 5
35	Sales Associate	Paul Henriot	Austria	1 2 3 4 5
36	Sales Associate	Matti Karttunen	Austria	1 2 3 4 5
37	Marketing Assistant	Patricio Simpson	Germany	1 2 3 4 5
38	Accountant	Elizabeth Lincoln	Argentina	1 2 3 4 5
39	Accounting Manager	Georg Pipps	Argentina	1 2 3 4 5
40	Owner	Matti Karttunen	Argentina	1 2 3 4 5
41	Accountant	Hanna Moos	Germany	1 2 3 4 5
42	Sales Agent	Hanna Moos	Austria	1 2 3 4 5
43	Sales Manager	Paul Henriot	England	1 2 3 4 5
44	Sales Associate	Antonio Moreno	Italy	1 2 3 4 5
45	Marketing Assistant	Hanna Moos	Brazil	1 2 3 4 5
46	Accountant	Paul Henriot	England	1 2 3 4 5
47	Marketing Manager	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
48	Sales Agent	Pascale Cartrain	USA	1 2 3 4 5
49	Sales Representative	Georg Pipps	France	1 2 3 4 5
50	Owner	Antonio Moreno	Austria	1 2 3 4 5
51	Sales Consultant	Paul Henriot	Germany	1 2 3 4 5
52	Owner	Patricio Simpson	Italy	1 2 3 4 5
53	Sales Representative	Georg Pipps	Austria	1 2 3 4 5
54	Sales Manager	Howard Snyder	Germany	1 2 3 4 5
55	Sales Manager	Jaime Yorres	USA	1 2 3 4 5
56	Owner	Patricio Simpson	Germany	1 2 3 4 5
57	Sales Representative	Georg Pipps	Italy	1 2 3 4 5
58	Sales Representative	Hanna Moos	Germany	1 2 3 4 5
59	Accounting Manager	Howard Snyder	England	1 2 3 4 5
60	Sales Representative	Hanna Moos	Bulgaria	1 2 3 4 5
61	Sales Representative	Paul Henriot	Brazil	1 2 3 4 5
62	Marketing Manager	Paul Henriot	Spain	1 2 3 4 5
63	Accounting Manager	Hanna Moos	France	1 2 3 4 5
64	Owner	Elizabeth Lincoln	Spain	1 2 3 4 5
65	Sales Associate	Patricio Simpson	Italy	1 2 3 4 5
66	Marketing Manager	Jaime Yorres	France	1 2 3 4 5
67	Accountant	Howard Snyder	Brazil	1 2 3 4 5
68	Accountant	Patricio Simpson	Italy	1 2 3 4 5
69	Sales Manager	Georg Pipps	Brazil	1 2 3 4 5
70	Owner	Paul Henriot	USA	1 2 3 4 5
71	Marketing Assistant	Matti Karttunen	Spain	1 2 3 4 5
72	Marketing Assistant	Patricio Simpson	Brazil	1 2 3 4 5
73	Sales Consultant	Georg Pipps	Brazil	1 2 3 4 5
74	Marketing Assistant	Hanna Moos	Argentina	1 2 3 4 5
75	Sales Associate	Pascale Cartrain	Italy	1 2 3 4 5
76	Accounting Manager	Howard Snyder	Bulgaria	1 2 3 4 5
77	Marketing Manager	Elizabeth Lincoln	England	1 2 3 4 5
78	Sales Consultant	Howard Snyder	Brazil	1 2 3 4 5
79	Accounting Manager	Paul Henriot	Argentina	1 2 3 4 5
80	Marketing Assistant	Georg Pipps	Italy	1 2 3 4 5
81	Sales Associate	Antonio Moreno	Brazil	1 2 3 4 5
82	Sales Manager	Paul Henriot	Bulgaria	1 2 3 4 5
83	Sales Associate	Matti Karttunen	Bulgaria	1 2 3 4 5
84	Sales Agent	Jaime Yorres	Argentina	1 2 3 4 5
85	Owner	Patricio Simpson	Brazil	1 2 3 4 5
86	Accountant	Paul Henriot	Italy	1 2 3 4 5
87	Sales Manager	Matti Karttunen	Argentina	1 2 3 4 5
88	Accounting Manager	Pascale Cartrain	Brazil	1 2 3 4 5
89	Sales Agent	Paul Henriot	Argentina	1 2 3 4 5
90	Sales Manager	Matti Karttunen	USA	1 2 3 4 5
91	Accounting Manager	Hanna Moos	Bulgaria	1 2 3 4 5
92	Marketing Assistant	Georg Pipps	France	1 2 3 4 5
93	Sales Agent	Georg Pipps	Austria	1 2 3 4 5
94	Accountant	Jaime Yorres	USA	1 2 3 4 5
95	Sales Agent	Hanna Moos	Italy	1 2 3 4 5
96	Owner	Matti Karttunen	Austria	1 2 3 4 5
97	Owner	Jaime Yorres	England	1 2 3 4 5
98	Marketing Assistant	Georg Pipps	Argentina	1 2 3 4 5
99	Accounting Manager	Howard Snyder	England	1 2 3 4 5
100	Sales Manager	Matti Karttunen	Brazil	1 2 3 4 5


...121 122 123 124 125 126 127 128 129 130 ... Item 124001 to 125000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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